Improvement in clock-calendars



' instead of the time-part-of thev clock.

months on one, and the names of' the daysofthe week .same-circle, andarranged behind a disk provided with WILLIAM A. Tuning. or BRISTOL,coNNIIo'rIoU'r.

Letters. Patent No. 99.258, dated January 25, 18i0.

IMPROVEMENT 1N CLOCILCALBNDARS.

The Schednlca'eferred to in these Letters Patent; and making part of thesame.

To all whom it may concern:

cut, have invented a new and improved Calendar' and' I hereby declarethat'thefollowingis a full, clear, and

exact description thereof, which will enablethose skilled in the art tomake and use tl1e,same,.reference being had-to the accompanyingdrawings, making a part of this specification, in which- Figure 1 is afroutview of the dial and pointer.l

Figure 2 is a view of the week-day disk. Figure 3 is a .front elevationof the workingfmechanism.

.Figure 4 is a front elevation ofthe' pointer.

Figure 5 is a side elevation of the same." E igure 6 is affront view oi'the double-acting dog or paw. 1 v Figure 7 is a front view of theyear-.wheel and pinion. -1 n Figure 8 is a front elevation of myinvention, showi'ng the. positiouof thepawlp, as it engages with wheelD, and also showing the interposing lever holding the arm of the-dogforward in position ready-to be caught bythehoke. n Y, .4 f

Figure 9 is a front elevation of same, showing the posit-ion of' part ofthe parts, when. the pointe-,r has nearly reached fig. 1 on .the dial.-Similar letters of reference indicate like parts.

The invention is designed as an improvementon a calendar, patented byme,`J une 16, 1868.

lhe improvement consists in the peculiar mechanism for regulating the.movement of the rnonthwheel,so that the'index shall alwaysJegister theproper num- 'ber of days fox-,the month shown on the dial, whetherthepointer has been moved by hand' or bythe-clock; also, in operating.calendar-medianismby the strike,

It alsoconsists of constructing the 4 pointer of Qthree pieces', toenable theusame to be easily and cheaply tittedand held in place; also,in the employment of two disks, one over the oth'ei,withtheuames ofy theon the other, buth'lists of names being nearly on the openings, Aso"that the day of `the week and the month in the 'year can both be seenat the same time.

,A designates a disk, on which are marked the months ot the year, andwhich disk is attached to the twelvetoothed year-wheel C, or connectedwith the same by means of a hollow arbor.

` B designates-the pointer attached yto the arbor of the month-wheel D,l'which passes through the hollow arbor of the-ycar-wheel C.

more'elearl y; a portion of it, however,is indicated in itsproperposition over wheel D.

E designates the main strike-wheel of an ordinary v eight-day clock.rlhis wheel E has upon it a pin, c,

'for moving andoperating the calendar.

a al designate a doublc-acting pawl or dog, pivoted to one of the spokesof wheel D, with both arms on the under side of said wheel;

One arm a is provided with a piu, s, which reaches through the openingsbetween the spokes of wheel D, 'a'nd also provided with a stop, b, toprevent the dog a a-I from being moved beyond'a certain point, withoutcarrying the'wlieel D with it. VIf the pawl or dog a a*4 were placed ina di'ercnt position, the pin-z might be purpose.,

This pawl or dog a a' is for the purpose of takingup and passing overthe extra teeth in the wheel D, for months of less than thirty-ono days,audit' wheel D index'cha'nges for the next month. v

The year-wheel C is provided with five pins l ll Z m, placed in suchpositions that at the end of each month,

end of the interposing or stop-lever l shall strikeaga-inst thelproperone of them, to regulate thc position of the pawl a a,"so Athat it shallbe taken up by the hook e at the proper time to give the right number ofdays-in the following month. The pins l are for the thirty-day months,while the pin l:n is for February. 'lheposition .of these pins over thewheel D, is shown by the small circles in tig. 3.

g'designatcs a pinion attached to the bridge F, and; gearing into theyear-wheel C.

v h designates a pin attached to therim of the month wheel. D, which, atthe end ofeachmonth, engages with theteeth of pinion g, and causespinion g and yearwheel 4C Yto revolvel sufficiently to bring the nameol' the following month immediately back of the opening ,n in the dialG. ':fand idesignate springs, one end of which presses upon the teeth ofthe wheels' D and C, and prevents them from rotating unintentionally.The axis upou'which the wheel D is iXed, works inside that of'wheel C.

' Hdesignates a lever,'pivoted on the frame of the clock.

I designates a lever pivotedA to the back plate J of the calendar, andconnected by rod o to the lever H.

. `Lever I is provided with a pawl, p, and arms or In iigs. 3'and 8, theyearLwheel C is partially rehooks q and e.

movedfrom the top of' wheel D, so as to show the parts ised`for a stop,without the addition of anotherpin, or .the end of the arm a might beturned up for the same have tl1irtytwo teeth, it also serves to take upthe thirty-second tooth oi' the month-wheel l), while the before a monthhaving less than thirty-one days, the

Lever K, which can be pivoted to a bridge, as shown, or to the samecentre shaft with the wheels D and C, rests upon arm q, and is providedwith a pawl, r.

s designates a pin or stop secured to plate .I which pin strikesmainstwthe pawl p, and prevents it from engaging with-the teeth of wheelD, so that said wheel can'be turned backward, if desired.

'lo the under side of the stop-lever (Z is secured a curved arm, t, andon the plate J, and underthe wheel 1), is secured a piu, c2, representedby small broken circles in tig. 3.

u designates spurs or arms, formed on the week-day disk L, the positionof which spurs u is shown in iig. This disk L is provided with sevenopenings, and the names of the days of they week are placed on theariusbetween tbe same. The names of day of the week being seven, it will benoticed that each name .is opposite an opening on the saine disk.A A

In cutting these, the spins M are left, one of which is represented infig. 2, which spurs are afterward bent backward at right angles with thedisk L. The disk L is placed-inunediatlely back of thedial G, and infront of the disk A, so that the name of the day of thc week will bes'ceu through the opening fe in dial G, and the name Aof the month,which is marked on the samesized circle, willbe seen at the right handofthe same, through the openings n in the dial G, and disk L, while thepointer B indicates the day 0f the month on the dial (l.

'lo maintain the pointer B in its propel' position on the socket, andalso to secure the wheel C and disk A in their place I provide thep'oiuterB with a brassV socket, ic, firmly secured to the saule. On oneside of the socket ju', I ina-ke a. small hole. The greater part of thesocket should he on the under side of theV point-cr, to insure placingit on right-side up, andalso.

to Vform a washer to' secure disk A and wheel C on the arbor.

' As the shaft to which the pointers are fitted variesy in size, thcpointer is titted by reaming the socket u'.

Then properly iittcd, a small piu, 7.', is driven -into ranged in anyother manner, provided it iuterposes bethc hole in the socket, beforementioned, so'as 'to project a little on the inside ofthe same, as shownin figav 4. The end of the pin L enters the slot J, tig. 3, and insuresplacing the pointer always in its proper place. 'libe wheels C and D,pinion y, springs f and fi, pins h l Zl l and lm, and pawl or dog a. al,are substantially the same asin the original patent. lhe operation of myinvention is as follows The strike main-wheel E of 'an ordinaryeight-day clock revolves once every twenty-four honrs. ,Other wheelsinthe strike-part might be arranged to propel the calendar, butthis-wheel is most convenient. As Athe clock ceases to strike eleven atnight, the wheel .E stops, with the piu c in the-position shown in blackin fig. 3. ()n striking twelve, the pinc carries the lcvers-H, I, and K,into the positions shown in fig. 9. Asthe lever l rises above the pin s,the spring a: throws the pawl 1 into position to engage with the teethofthe month-wheel l), as indicated in lig'. 8, and moves the wheel D onetooth, and the pointer B indicates an advance of one day on the dial Gthe lever l rises, the pin q causes the lever K to rise with itl, while.the pawl fr engages one of the spurs or arms fu, and brings thesucceeding day of the week innuediately back of the opening c on thedial (l. As the wheel D, each succeeding day, is moved on in its.

course, the pawl or dog a. a. strikes the pin a2 on the plate J, andthrows its arm al forward, and its arm a outward, until pin'z engages'with the outside-of the curved arm ton the lever rl/as shown in fie. 8.As the spring y, for holding the dog or pawl .It c in place, is strongerthan the spring y, for holding the lever d ili'place, the lever fl (ifin a t-hirty-'oue-day month) is drawn inward so far, that when the pawl-or` dog a al has passed the pin a, it is in the same position as itAwould have been if the lever d and pin a.2 lad not been in its course.

Ou the thirty-first day of the month, the pawl or dog a a is advanced sofar that the hook c engages with the arm a, and moves thedog on itspivot until the stop-pin b strikes the spoke of wheel' O, as shown iniig. 9, when it turns the said wheel onev tooth, in

-addition to the tooth which has just been moved by the pawl p, thuscarryingr the poi ter, at one time, from 3l over the blank space to 1. 1only thirty-one teeth, instead of thirty-two teeth, are used, (ascouldbe, if desired,) this pawl or dog (t awould be arranged so as tomove the wheel D in the short months only.

lVhile the pawl p and hook e are moving the wheel D, the pin h engageswith the teeth of pinion g, and causes the wheel C and disk A to makeone-twelfth of a revolution, and the name of tbc succeeding month showsthrough the opening -nin the dial G and disk L.

lVllen the pin a throws tle pin s on the pawl or dog a a?, outside ofthe curved arm t, (if in a short moutln) the end of stop-lever d strikesone of pins 1er 7m, and prevents the spring y from drawing thc lever dinward, as shown in `fig. 8; consequently, tbe a is further forward, andthe stop-'pin b nearer' tbc spoke, (if ou the February pin, it is threedays o r teeth further forward, and if on a thirty-day-month pin, oneday or tooth of wheel D'fnrther forward,) and as the hook e engages withthe arm al one or three days sooner, it carries the wheel D and pointerB t-he requisite number ofdays further.

Althought-he hook c and arm a! eugaget'rom one to three days' soulier',they always disengage at the same point, yleaving the pointer B at iig.l ou the dial G. This calendar not being calculated for leap-year, Vouthat year, and'that' only, it will be necessary, on the iiist of March,to turn the pointer back one day or space. t v

Instead of being attached to the lever I, the pawlp and hooks q and cmight be attached to a reciprocatf ing slide, and produce the sameeffect.'

The stopdever d can be made of any form, and artweeu the arm of the pawlor dog a a and the pins l vor my, as and for the purpose described.

1n the ori and left ina short mouth, it would count thirty-one days. 'Byusing the inter-posing or stop-lever 1,-the calendar will alw ys countcorrectly -for the month shown on thetlial. Ordinarily, calendarshavebeen attached to the time-part of clocks. Asthe time-wheels are continually moving, a twenty-fourhou'r wheel, so attached, moves very slow,and,therefore, occupies several hours in moving the calendar each night, allof which timev the calendar of the clock should not be touched. Thenecessary power thus taken from the time-part often causcsthe clock tostop. l The strike-part, especially the main wheel, 'has generallyconsiderable surplus power. As it moves but once an hour, or with anintermittent motion, it moves rapidly or instantaneously. lhe calendar,being arrangedto move while the clock is in the act of striking, is n otconnected to thev clockbut a. few moments, and, consequently, can bevaltercdo'r set any other time, when desired, and is not liable to stopthe clock.

When .a calendar-movement is attached to the time-Y part ofthe clock, itis necessary to notice the position ofthe twenty-four-hour wheel, and toset the pointer in such position that the said wheel will operatelthel;

calendar when the pointer is at twelve.

When attached to the strike-part, it is only neces sary, in making thewheel E, to set the piu c in its proper position, and then arrange Ytheclock so 'as to strike the proper' hour indicated by the pointer, andthe calendar will always. be right. 1f designed to use' this calendar ona clock with a time-part only, or for ginal, if the pointer were turnedby hand, v

other reasons, it can be attached to the timefpart when desired.

The pointer B s honld never be turned backward 'while the clock strikestwelve at night.

By-my invention I produce a calendar which can be turned either forwardo'r backward, (except n'ear the close of each month,) and will alwayscount correctly for the month indicated on its face.

By'placing the two disks one above the other, as large letters can beused on each disk as if only asingle disk were used, the two thusoccupying only the space-ot' one. By connecting,r with the strike-partof the clock, many of the general objections to calendars areremoved.

What I claim as' new,I and desire to secure by Letters Pat-ent, is-' 'Yy 1. The combination of the pawl or dog a a', the trip-.pin a,interposing lever d,and the wheels D and C, substantially as and for thepurpose described.

2. .The improved mechanism described, for operating a calendar-movement,consisting o f the 'oscillating lever I I, carrying with it therpawlpfwhich engages with the teeth of wheel 'D, and moves the same one tootheach day, and the pawl or hook c, which engages with the pawl al on thewheel D, at the end of eachmonth, (or

end of each short month,) and thereby moves said Wheel one or more teethin addition to that moved by the pawl p, substantially as described.

3. The week-disk L, lconstructed with each name opposite an openingtherein, in cqrnbination with the month-disk A, and the dial G,concentrically mounted, so that the indications on the disk A are shownthrough the'openings in'the disk L, substantially as described,Y

I 4. The combination and arrangement of the pawl p,

wheel D, and pointer B, the whole combined and arranged so that thepointer B can be rotated in either direction, substantiallyas and forthe purpose described.

5.The combination of a calendar-mechanism with a. clock-strikingmechanisunso as to be operated thereby, substantially as and for thepurposes described.

NVM. A. TERRY.

` Witnesses:

.Luiss SHEPARD, C. A. SHEPARD.

